Floor and ceiling construction.



' N0. 690,|93. Patented Dec. 3|, |90I.

.LSCHRATWIESER- FLOR AND CEILING CONSTRUCTION.

v{Appximmn mad July 22, 1901:. v

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JACOB SOHRATWIESER, OF BROOKLYN, NEV YORK.

FLOOR AND CEILING CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 690,193, dated December 31, 1901.

Application filed J'uly 22,1901. Serial No. 69,244. (No model.)

T0 @ZZ wiz/0111, it may concern;

Be it known that I, JACOB ScHRA'rwIEsER, of the borough of Brooklyn, in the county of Kings, city and State of New York, have invented certain new and useful Im provements in Floor and Ceiling Construction, of which the following is a specification.

'My invention relates tointermediate construction adapted to be placed between the joists or I-beams of the building and adapted to have the iioors laid upon the upper part thereof and the ceilings hung therefrom; and its objects are, among others, to provide a light and durable reproof construction of this character which when completed will form practically a solid mass formed of the differentparts hereinafterdescribed securely united by cement, mortar, or other like substance and upon which the oors may be readily laid and the ceilings hung.

It consists of the combination of partsand arrangement of details hereinafter described and claimed, and illustrated in the accompanying drawings, forming a part hereof.

InL the said drawings, Figure l is a top view of a construction embodying my improvements with the upper flange of the I-beams cut away. Fig. 2 is a vertical section of the same on the line 2 2 of Fig. l with the means for attaching the ceiling shown in Fig. 3 omitted. Fig. 3 is an enlarged sectional View similar to that of Fig. 2, showing the method of hanging the ceiling. Fig. 4 is a section on the line 4 4 of Fig. 3 looking in the direction indicated by the arrow, and Fig. 5 is a modied construction showing the application of my improvements to a segmental arch.

Between the joists or I-beams A and resting upon the lower flanges thereof extend the cross-pieces B, which are preferably made of T-iron. Between these cross-strips and resting their edges on the anges of the T-irons and the I-beams are the blocks C, made of plaster, cement, or other suitable substance. These blocks are provided with small mortises b along the edges, which rest upon the cross-pieces B, corresponding in depth to the thickness of the said strips, so that all four edges of the block will rest upon the flanges of the said strips and beams. They are also provided with beveled edges having vertical groovesc therein and horizontalgrooves c, running entirely around the said edges and crossing the vertical grooves. These grooves or indentations may be of curved or angular construction, as shown in Figs. l and 2 and Fig. 3, respectively, or they may be of any other desired shape. They are adapted to receive the cement, mortar, or other Limiting substance which is poured into the spaces between the blocks, and thus when the said uniting substance becomes set or hardened form a key which will unite the blocks, crosspieces, and beams securely together. The lower surfaces of the blocks are provided with indentations or scoring c3, which will assist the plaster of the ceiling in adhering thereto when an intermediate construction between the said blocks and ceiling is used.

For the purpose of hanging a finished ceiling I have provided the following construction: A strip of wood or other light material B is placed on the under side of the crosspieces B and secured thereto by means of the sheet-iron casing B2, which embraces the lower flanges of the strip B and the entire strip B2. To these strips metal lath D may be nailed by driving through the metal sheet-- ing B2 into the strip B', and upon this lathing the plaster of the ceiling may be spread.

What I claim as new isl. In the construction of floors and ceilings the combination with joists or I-beams and cross-pieces, of blocks fitted into the spaces between said beams and cross-pieces and beveled edges on the said blocks and vertical grooves in said beveled edges.

2. In the construction of floors and ceilings the combination with joists or I-beams and cross-pieces, of blocks intermediate the said beams and 'cross --pieces and vertical grooves in the edges of said blocks and horizontal grooves therein.

3. In the construction of oors and ceilings the combination with joists or I-beams and cross-pieces, and strips of perforable material secured to the under side of said cross-pieces.

4. In the construction of tioors and ceilings the combination with joists or I-beams and cross-pieces, and strips of perforable material secured to the under side of said crosspieces by means of metallic sheeting su rroundingthe said strips and flanges.

Signed at the city of New York this 20th day of May, 1901.

JACOB. SCHRATWIESER.

Witnesses:

WILLIAM R. BAIRD, ALBERT HOVERMANN.

IOO 

